The Vitamin C 23 Serum
더 비타민 C 23 세럼
COSRX
A potent 23% pure Vitamin C (Ascorbic Acid) serum that targets dark spots, wrinkles, and dullness. Lightweight, stable formula with visible brightening results within 3 weeks.
Key Ingredients
Pending enrichment
Humectant and solvent that enhances hydration
Silicone that creates smooth texture and protective barrier
pH adjuster and buffering agent
+ 15 more ingredients
Ingredient Effectiveness Data
Based on aggregated user reports across Seoul Sister's community
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Frequently Asked Questions
What are the key ingredients in The Vitamin C 23 Serum?
The key active ingredients in The Vitamin C 23 Serum by COSRX include Vitamin C (brightening, antioxidant, collagen-synthesis), Ethyl Ascorbic Acid (Stable vitamin C derivative for brightening and antioxidant protection), Caffeine (Antioxidant and anti-inflammatory, reduces puffiness), Glutathione (Antioxidant and skin brightening agent), Adenosine (anti-aging, firming, soothing). Based on Seoul Sister's analysis of 15+ user reports, key ingredients show 100% effectiveness for acne in oily skin types. Seoul Sister tracks ingredient effectiveness across 5,800+ K-beauty products to provide data-backed recommendations.
Is The Vitamin C 23 Serum good for sensitive skin?
The Vitamin C 23 Serum is a Korean serum by COSRX. Sensitive skin compatibility depends on individual triggers and allergies. Seoul Sister's AI advisor Yuri analyzes all 20 ingredients against your specific skin type, concerns, and known allergens to provide a personalized compatibility score. Common irritant ingredients like fragrance, alcohol denat, and essential oils are flagged automatically.
Is The Vitamin C 23 Serum good for oily skin?
For oily skin, the key factors in evaluating The Vitamin C 23 Serum are comedogenic ingredient ratings, oil content, and finish type. This serum contains 7 active ingredients. Seoul Sister's database cross-references each ingredient's comedogenic rating (0-5 scale) against your skin type to identify potential pore-clogging risks. Subscribe for a personalized oily skin compatibility analysis.
How much does The Vitamin C 23 Serum cost?
The Vitamin C 23 Serum by COSRX starts from $22.50 USD for 20ml. Seoul Sister Pro members compare prices across 6+ authorized retailers including Olive Young, Soko Glam, and YesStyle to find the best deal, with automatic price drop alerts.
Where to buy The Vitamin C 23 Serum?
The Vitamin C 23 Serum by COSRX is available from authorized K-beauty retailers including Olive Young Global, Soko Glam, YesStyle, and Amazon. Prices start from $22.50 USD. Seoul Sister verifies retailer authenticity and tracks counterfeit indicators to help you buy genuine Korean skincare products.